chewie285

I apologize in advance because someone at some point has probably already asked and answered these questions.

I've got a 2003 lq4 from a gmc sierra 1500 going into a 2002 rs camaro. i was told by the guy at speartech that it would be easiest to get a harness from and ls1 camaro and go from there.

1. Would i need to make any modifications to the ls1 harness to make it work with the lq4, other than the injector plugs?
2. Will the ls1 harness be plug and play to the existing v6 wiring (i think all that wiring is all chassis electrical/lighting tho)?
3. i have the pcm from the lq4. will i be able to use that or do i have to get a ls1 pcm? i realize i will have to get either reprogrammed.
4. since the lq4 is an ls based design will all the sensors read accurately (or at least semi-accurately) on my instrument cluster?
5. will i need a custom tune before starting or should this be turn key?
6. would it be easier to use a stock harness or get a stand alone from painless?

any other info would be helpful as well.

thanks in advance